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open lake forecast for lake ontario
national weather service buffalo ny
403 am edt sun apr 12 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 30.5 inch area of high pressure will drift east 
into new england today, before sliding off the coast tonight. a 29.4 
inch low over the upper midwest today, will move quickly 
northeastward to near james bay tonight, while pushing an attendant 
warm front across the lake this afternoon. this low will strengthen 
to 29.2 inches while continuing to trek northeast into northern 
quebec monday, with a trailing cold front stalling near the lake 
monday through tuesday. a 29.5 inch surface low advancing through 
the upper great lakes wednesday will lift this frontal boundary 
northward into canada. this 29.5 inch low will continue northeast 
into southern quebec on thursday while dragging an attendant cold 
front across the lake. a 30.2 inch high will then build over the 
lower great lakes on friday.


loz062-121500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt sun apr 12 2026

.today...southeast winds 5 to 15 knots becoming east. rain
showers this afternoon. waves 2 feet or less. 
.tonight...east winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. a chance of showers in the evening.
a chance of showers late. waves 1 to 3 feet building to 3 to
5 feet. 
.monday...southwest winds 15 to 25 knots. showers. waves 3 to
6 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. showers likely overnight. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. showers likely with a chance of thunderstorms. waves
1 to 3 feet building to 3 to 5 feet, then subsiding to 1 to
3 feet. 
.wednesday...southwest winds 10 to 15 knots. showers likely with
a chance of thunderstorms during the day, then showers likely
wednesday night. waves 1 to 2 feet. 
.thursday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers likely. waves 1 to 3 feet building to 2 to
4 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
321 am edt sun apr 12 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure exits this morning giving way to an
active stretch of weather. expect several rounds of showers,
thunderstorms, and gusty winds through thursday with multiple
passing disturbances.


lhz361-362-121530-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
321 am edt sun apr 12 2026

.today...southeast winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 15 to 20 knots late in the
afternoon. showers. waves 5 to 7 feet. waves occasionally around
10 feet. 
.tonight...southeast winds 15 to 20 knots becoming southwest
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. a chance of showers and thunderstorms in the
evening...then a chance of showers after midnight. waves 6 to
9 feet. waves occasionally around 12 feet. 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. a chance of showers
in the morning. waves 5 to 7 feet. waves occasionally around
10 feet. 
.monday night...west winds 5 to 10 knots veering to the northeast
by midnight...then becoming east 10 to 15 knots after midnight. a
chance of showers in the evening...then showers and a chance of
thunderstorms after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.tuesday...east winds 15 to 20 knots becoming northeast 10 to
15 knots late in the morning...then becoming northwest 5 to
10 knots late in the afternoon. showers and a chance of
thunderstorms in the morning. a chance of showers. waves 3 to
5 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast 5 to
10 knots early in the evening...then becoming east 10 to 15 knots
by midnight. a chance of showers. showers likely by midnight.
waves 3 to 5 feet. 
.thursday...east winds 15 to 20 knots becoming southwest 10 to
15 knots early in the evening...then veering to the northwest by
midnight. showers likely early in the morning...then a chance of
showers until early evening. waves 3 to 5 feet subsiding to 2 to
4 feet by midnight. 


$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
321 am edt sun apr 12 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure exits this morning giving way to an
active stretch of weather. expect several rounds of showers,
thunderstorms, and gusty winds through thursday with multiple
passing disturbances.


lhz363-462>464-121530-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
321 am edt sun apr 12 2026

.today...southeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. showers in the
morning...then showers likely in the afternoon. waves 3 to 5 feet
building to 5 to 7 feet in the afternoon. waves occasionally
around 10 feet. 
.tonight...south winds 15 to 20 knots becoming southwest 20 to
25 knots after midnight. showers likely. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.monday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. a chance of showers in the
morning. waves 4 to 6 feet. 
.monday night...north winds 5 to 10 knots veering to the east by
midnight...then becoming south 10 to 15 knots after midnight. a
chance of showers in the evening...then a chance of showers and
thunderstorms after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. waves occasionally
around 8 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of thunderstorms in the morning. a chance of
showers. showers likely late in the evening. waves 2 to 4 feet. 
.wednesday...north winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the southeast . a chance of showers early in the morning.
showers likely . waves 3 to 5 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots early in the evening...then becoming west 5 to 10 knots
by midnight. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet by midnight. 


$$